Error messages?

Just wondering if anybody else is having the same problems I am
getting postings from the bionet.molbio.gene-linkage newsgroup. I
connected here for the first time on Thursday, April 6, and lots of
postings and a link to earlier articles were available. Today (4/7)
there are only three articles and no way to get previous postings. My
Web browser shows an error message ("a threaded listing could not be
displayed because NNTP server does not support the XOVER command") - I
didn't notice the error message yesterday. Thanks!!